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Cartilage regeneration

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https://www.readbyqxmd.com/read/28225583/microfluidic-encapsulation-of-human-mesenchymal-stem-cells-for-articular-cartilage-tissue-regeneration
#1
Fanyi Li, Vinh X Truong, Helmut Thissen, Jessica Frith, John S Forsythe
Stem cell injections for the treatment of articular cartilage damage are a promising approach to achieve tissue regeneration. However, this method is encumbered by high cell apoptosis rates, low retention in the cartilage lesion and inefficient chondrogenesis. Here, we have used a facile, very low cost-based microfluidic technique to create visible light-cured hydrogel microparticles composed of gelatin norbornene (GelNB) and a polyethylene glycol (PEG) crosslinker. In addition, we have demonstrated that the process enables the rapid in situ micro-encapsulation of human bone marrow-derived mesenchymal stem cells (hBMSCs) under biocompatible microfluidic-processing conditions for long-term maintenance...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28224886/alginate-hydrogels-modified-with-low-molecular-weight-hyaluronate-for-cartilage-regeneration
#2
Honghyun Park, Hyun Ji Lee, Hyoseok An, Kuen Yong Lee
Alginate is a typical biomaterial that forms hydrogels in the presence of calcium ions and has often been utilized in tissue engineering approaches. However, it lacks biofunctionality in the form of interactions with cells and proteins. Hyaluronate, a main component of glycosaminoglycans, provides CD44-specific interactions with chondrocytes but typically requires chemical cross-linking agents to fabricate hydrogels, which may cause unexpected side effects in the body. In this study, we propose the design and fabrication of a hybrid structure of alginate and hyaluronate useful for cartilage regeneration...
April 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28202394/platelet-rich-plasma-prp-induces-chondroprotection-via-increasing-autophagy-anti-inflammatory-markers-and-decreasing-apoptosis-in-human-osteoarthritic-cartilage
#3
Mayssam Moussa, Daniel Lajeunesse, George Hilal, Oula El Atat, Gaby Haykal, Rim Serhal, Antonio Chalhoub, Charbel Khalil, Nada Alaaeddine
OBJECTIVES: Autophagy constitutes a defense mechanism to overcome aging and apoptosis in osteoarthritic cartilage. Several cytokines and transcription factors are linked to autophagy and play an important role in the degradative cascade in osteoarthritis (OA). Cell therapy such as platelet rich plasma (PRP) has recently emerged as a promising therapeutic tool for many diseases including OA. However, its mechanism of action on improving cartilage repair remains to be determined. The purpose of this study is to investigate the effect of PRP on osteoarthritic chondrocytes and to elucidate the mechanism by which PRP contributes to cartilage regeneration...
February 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28197017/characterization-and-therapeutic-application-of-canine-adipose-mesenchymal-stem-cells-to-treat-elbow-osteoarthritis
#4
Éva Kriston-Pál, Ágnes Czibula, Zoltán Gyuris, Gyula Balka, Antal Seregi, Farkas Sükösd, Miklós Süth, Endre Kiss-Tóth, Lajos Haracska, Ferenc Uher, Éva Monostori
Visceral adipose tissue (AT) obtained from surgical waste during routine ovariectomies was used as a source for isolating canine mesenchymal stem cells (MSCs). As determined by cytofluorimetry, passage 2 cells expressed MSC markers CD44 and CD90 and were negative for lineage-specific markers CD34 and CD45. The cells differentiated toward osteogenic, adipogenic, and chondrogenic directions. With therapeutic aims, 30 dogs (39 joints) suffering from elbow dysplasia (ED) and osteoarthritis (OA) were intra-articularly transplanted with allogeneic MSCs suspended in 0...
January 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28194374/regenerative-potential-of-the-cartilaginous-tissue-in-mesenchymal-stem-cells-update-limitations-and-challenges
#5
Ivana Beatrice Mânica da Cruz, Antônio Lourenço Severo, Verônica Farina Azzolin, Luiz Filipe Machado Garcia, André Kuhn, Osvandré Lech
Advances in the studies with adult mesenchymal stem cells (MSCs) have turned tissue regenerative therapy into a promising tool in many areas of medicine. In orthopedics, one of the main challenges has been the regeneration of cartilage tissue, mainly in diarthroses. In the induction of the MSCs, in addition to cytodifferentiation, the microenvironmental context of the tissue to be regenerated and an appropriate spatial arrangement are extremely important factors. Furthermore, it is known that MSC differentiation is fundamentally determined by mechanisms such as cell proliferation (mitosis), biochemical-molecular interactions, movement, cell adhesion, and apoptosis...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28193542/sulfated-hyaluronic-acid-hydrogels-with-retarded-degradation-and-enhanced-growth-factor-retention-promote-hmsc-chondrogenesis-and-articular-cartilage-integrity-with-reduced-hypertrophy
#6
Qian Feng, Sien Lin, Kunyu Zhang, Chaoqun Dong, Tianyi Wu, Heqin Huang, Xiaohui Yan, Li Zhang, Gang Li, Liming Bian
: Recently, hyaluronic acid (HA) hydrogels have been extensively researched for delivering cells and drugs to repair damaged tissues, particularly articular cartilage. However, the in vivo degradation of HA is fast, thus limiting the clinical translation of HA hydrogels. Furthermore, HA cannot bind proteins with high affinity because of the lack of negatively charged sulfate groups. In this study, we conjugated sulfate groups to HA. These sulfated HA exhibit significantly slower degradation by hyaluronidase compared to the wild type HA...
February 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28191770/stem-cell-based-tissue-engineered-laryngeal-replacement
#7
Tahera Ansari, Peggy Lange, Aaron Southgate, Karin Greco, Carla Carvalho, Leanne Partington, Anthony Bullock, Sheila MacNeil, Mark W Lowdell, Paul D Sibbons, Martin A Birchall
Patients with laryngeal disorders may have severe morbidity relating to swallowing, vocalization, and respiratory function, for which conventional therapies are suboptimal. A tissue-engineered approach would aim to restore the vocal folds and maintain respiratory function while limiting the extent of scarring in the regenerated tissue. Under Good Laboratory Practice conditions, we decellularized porcine larynges, using detergents and enzymes under negative pressure to produce an acellular scaffold comprising cartilage, muscle, and mucosa...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191761/angiogenic-potential-of-human-bone-marrow-derived-mesenchymal-stem-cells-in-chondrocyte-brick-enriched-constructs-promoted-stable-regeneration-of-craniofacial-cartilage
#8
Zhiye Li, Ruikai Ba, Zhifa Wang, Jianhua Wei, Yimin Zhao, Wei Wu
Craniofacial deformities caused by congenital defects or trauma remain challenges for clinicians, whereas current surgical interventions present limited therapeutic outcomes. Injection of bone marrow-derived mesenchymal stem cells (BMSCs) into the defect is highly desirable because such a procedure is microinvasive and grafts are more flexible to fill the lesions. However, preventing hypertrophic transition and morphological contraction remain significant challenges. We have developed an "all host derived" cell transplantation system composed of chondrocyte brick (CB)-enriched platelet-rich plasma (P) gel and BMSCs (B)...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191757/cartilage-regeneration-in-osteoarthritic-patients-by-a-composite-of-allogeneic-umbilical-cord-blood-derived-mesenchymal-stem-cells-and-hyaluronate-hydrogel-results-from-a-clinical-trial-for-safety-and-proof-of-concept-with-7-years-of-extended-follow-up
#9
Yong-Beom Park, Chul-Won Ha, Choong-Hee Lee, Young Cheol Yoon, Yong-Geun Park
Few methods are available to regenerate articular cartilage defects in patients with osteoarthritis. We aimed to assess the safety and efficacy of articular cartilage regeneration by a novel medicinal product composed of allogeneic human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs). Patients with Kellgren-Lawrence grade 3 osteoarthritis and International Cartilage Repair Society (ICRS) grade 4 cartilage defects were enrolled in this clinical trial. The stem cell-based medicinal product (a composite of culture-expanded allogeneic hUCB-MSCs and hyaluronic acid hydrogel [Cartistem]) was applied to the lesion site...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28185909/customized-biomaterials-to-augment-chondrocyte-gene-therapy
#10
Nizeet I Aguilar, Stephen Trippel, Shuiliang Shi, Lawrence J Bonassar
: A persistent challenge in enhancing gene therapy is the transient availability of the target gene product. This is particularly true in tissue engineering applications. The transient exposure of cells to the product could be insufficient to promote tissue regeneration. Here we report the development of a new material engineered to have a high affinity for a therapeutic gene product. We focus on insulin-like growth factor-I (IGF-I) for its highly anabolic effects on many tissues such as spinal cord, heart, brain and cartilage...
February 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28185322/a-difunctional-regeneration-scaffold-for-knee-repair-based-on-aptamer-directed-cell-recruitment
#11
Xiaoxia Hu, Yulan Wang, Yaning Tan, Jie Wang, Haoyang Liu, Yingqian Wang, Shuang Yang, Miusi Shi, Shiyong Zhao, Yufeng Zhang, Quan Yuan
To solve the challenge of poor knee repair, an aptamer-bilayer scaffold is designed for autologous mesenchymal stem cell (MSC) recruitment and osteochondral regeneration. The scaffold can efficiently recruit MSCs to the defect and induce the directional differentiation of MSCs, thus successfully achieving simultaneous regeneration of cartilage and bone in the knee joint.
February 10, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28181432/mimicking-hierarchical-complexity-of-the-osteochondral-interface-using-electrospun-silk-bioactive-glass-composites
#12
Joseph Christakiran M, Philip J T Reardon, Rocktotpal Konwarh, Jonathan C Knowles, Biman B Mandal
The anatomical complexity and slow regeneration capacity of hyaline cartilage at the osteochondral interface pose a great challenge in the repair of osteochondral defects (OCD). In this study, we utilized the processing feasibility offered by the sol derived 70S bioactive glass and silk fibroin (mulberry Bombyx mori and endemic Indian non-mulberry Antheraea assama), in fabricating a well-integrated, biomimetic scaffolding matrix with a coherent interface. Differences in surface properties such as wettability and amorphousness between the two silk groups resulted in profound variations in cell attachment and extracellular matrix protein deposition...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28170184/regeneration-of-articular-cartilage-by-human-esc-derived-mesenchymal-progenitors-treated-sequentially-with-bmp-2-and-wnt5a
#13
Jason D Gibson, Michael B O'Sullivan, Farhang Alaee, David N Paglia, Ryu Yoshida, Rosa M Guzzo, Hicham Drissi
The success of cell-based therapies to restore joint cartilage requires an optimal source of reparative progenitor cells and tight control of their differentiation into a permanent cartilage phenotype. Bone morphogenetic protein 2 (BMP-2) has been extensively shown to promote mesenchymal cell differentiation into chondrocytes in vitro and in vivo. Conversely, developmental studies have demonstrated decreased chondrocyte maturation by Wingless-Type MMTV Integration Site Family, Member 5A (Wnt5a). Thus, we hypothesized that treatment of human embryonic stem cell (hESC)-derived chondroprogenitors with BMP-2 followed by Wnt5a may control the maturational progression of these cells into a hyaline-like chondrocyte phenotype...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28169595/tissue-derived-extracellular-matrix-bioscaffolds-emerging-applications-in-cartilage-and-meniscus-repair
#14
Farrah A Monibi, James Lee Cook
Musculoskeletal injuries are a common and significant problem in orthopaedic practice. Given the long-term consequences of unaddressed cartilage and meniscal pathology, a number of treatments have been attempted to stimulate repair or to replace the injured tissue. Despite advances in orthopaedic surgery, effective treatments for cartilage and meniscus injuries remain a common and significant clinical challenge. Tissue engineering is a developing field that aims to regenerate injured tissues with a combination of cells, scaffolds, and signals...
February 7, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28161663/is-there-a-cause-and-effect-relationship-between-physicochemical-properties-and-cell-behavior-of-alginate-based-hydrogel-obtained-after-sterilization
#15
Hao Yu, Ghislaine Cauchois, Jean-François Schmitt, Nicolas Louvet, Jean-Luc Six, Yun Chen, Rachid Rahouadj, Céline Huselstein
Alginate-based hydrogel scaffolds are widely used in the field of cartilage regeneration and repair. If the effect of autoclaving on the alginate powder is well known, it is not the same for the possible effects of the sterilization UV treatment on the properties of the hydrogel after polymerization. To select an effective sterilization treatment of alginate-based materials, one must find what are inter-relationship between the characteristics (chemical, physical and mechanical) of alginate-based hydrogel during sterilization, and what consequences have affected on cell behavior...
January 25, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28143470/current-use-of-autologous-adipose-tissue-derived-stromal-vascular-fraction-cells-for-orthopedic-applications
#16
REVIEW
Jaewoo Pak, Jung Hun Lee, Kwang Seung Park, Moonhee Park, Lin-Woo Kang, Sang Hee Lee
Autologous adipose stromal vascular fractions (SVFs) containing adipose tissue-derived stem cells (ASCs) are currently being used in clinical settings for various orthopedic applications for human patients. Due to its potential capability of regenerating cartilage, bone, and tendons, autologous adipose SVFs are being tried in treating patients with osteoarthritis (OA), chondromalacia, meniscus tear, osteonecrosis of the femoral head, and tendon injuries. Here, we have reviewed available human clinical studies with regard to patient applications of autologous adipose SVF containing ASCs, specifically assessing effectiveness and safety in the field of orthopedic disorders...
January 31, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28140522/hybrid-extracellular-matrix-design-for-cartilage-mediated-bone-regeneration
#17
Paiyz E Mikael, Hyun S Kim, Syam P Nukavarapu
Recapitulating long bone repair through endochondral ossification (EO) is increasingly becoming a more popular approach. A successful EO Process depends greatly on the establishment of a healthy hypertrophic-cartilage template (HCT). The aim of this work is to design a hydrogel system, which closely mimics the extracellular matrix of HCT. We examined the combinatorial effect of two commonly used hydrogels for bone and cartilage regeneration strategies, hyaluronan (HA) and fibrin (FB), to induce HCT formation...
January 31, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28139532/cartilage-tissue-engineering-role-of-mesenchymal-stem-cells-along-with-growth-factors-scaffolds
#18
REVIEW
M B Gugjoo, G T Sharma, H P Aithal, P Kinjavdekar
Articular cartilage injury poses a major challenge for both the patient and orthopaedician. Articular cartilage defects once formed do not regenerate spontaneously, rather replaced by fibrocartilage which is weaker in mechanical competence than the normal hyaline cartilage. Mesenchymal stem cells (MSCs) along with different growth factors and scaffolds are currently incorporated in tissue engineering to overcome the deficiencies associated with currently available surgical methods and to facilitate cartilage healing...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28138909/colloidal-gels-with-extracellular-matrix-particles-and-growth-factors-for-bone-regeneration-in-critical-size-rat-calvarial-defects
#19
Jakob M Townsend, S Connor Dennis, Jonathan Whitlow, Yi Feng, Jinxi Wang, Brian Andrews, Randolph J Nudo, Michael S Detamore, Cory J Berkland
Colloidal gels encapsulating natural materials and exhibiting paste-like properties for placement are promising for filling complex geometries in craniofacial bone regeneration applications. Colloidal materials have demonstrated modest clinical outcomes as bone substitutes in orthopedic applications, but limited success in craniofacial applications. As such, development of a novel colloidal gel will fill a void in commercially available products for use in craniofacial reconstruction. One likely application for this technology is cranial reconstruction...
January 30, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28138717/-patellofemoral-arthroplasty
#20
M Cotic, P Forkel, A B Imhoff
OBJECTIVE: Isolated resurfacing of the trochlea using an inlay prosthesis without changing the complex kinematics of the patellofemoral joint. INDICATIONS: Symptomatic, isolated patellofemoral osteoarthritis or isolated osteochondral lesions, failed conservative and cartilage regeneration procedures. No or concurrently corrected ligament instability, tibiofemoral and patellofemoral malalignment. CONTRAINDICATIONS: Symptomatic patellofemoral osteoarthritis, inflammatory joint disease, chondrocalcinosis, chronic pain syndromes, active infections or knee ankylosis...
February 2017: Operative Orthopädie und Traumatologie
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